Choose Options Quick view Duolok Duolok ISSD12UE Union Elbow 3/4" Tube Duolok ISSD12UE Union Elbow 3/4" Tube This 316 Stainless Steel Union Elbow ISSD12UE Duolok has a Tube O.D. of 3/4"Cross Reference List:Swagelok: SS-1210-9Parker A-Lok: 12EE12-316Unilok: ISSU12UEGriplok: ISSG12UE Duolok Vs. Swagelok ®... MSRP: $76.51 Choose Options Compare